GENERAL INFORMATION...

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2 CONTENTS CONTENTS 1. GENERAL INFORMATION... 2 PURPOSE... 2 OPERATOR'S RESPONSIBILITY FOR PATIENT SAFETY... 2 MARKINGS... 2 WARNINGS... 2 General safety warnings... 3 Electrical system safety warnings... 3 WARNING NOTICES AND SYMBOLS... 4 USE... 5 STORAGE AND TRANSPORT EQUIPMENT DESCRIPTION TECHNICAL DATA OPERATION INSTALLATION AND FIRST OPERATION Removal of transport stabilizers Wheel installation Compressed air connection Electrical connection First operation Accessories PERSONNEL Switching the compressor on Running the compressor Cleaning and replacing the filters Cleaning the compressor MAINTENANCE REPAIRS AND SERVICE Cover removal MAINTENANCE SCHEDULE Service interval signalization Safety valve check Check tightness of joints and inspect the equipment Replacing filters elements Setting outlet air pressure Cleaning the pressure regulator Replacing the inlet filter (21) Stabilizing the compressor before shipping SHUT-DOWN EQUIPMENT DISPOSAL BATTERY DISPOSAL TROUBLESHOOTING SPARE PARTS ELECTRIC AND PNEUMATIC DIAGRAMS WIRING DIAGRAM PNEUMATIC DIAGRAM NP-DK50 DS-19_

3 GENERAL INFORMATION 1. GENERAL INFORMATION PURPOSE The EKOM DK50 DS is a medical air compressor that supplies clean, oil-free compressed air for use with medical ventilators. OPERATOR'S RESPONSIBILITY FOR PATIENT SAFETY The Installation, Operation and Maintenance Manual is an integral part of the equipment and must be kept with the compressor. Careful review of this manual will provide information necessary for correct operation of the equipment. Rx only US Federal law restricts the sale of this device by or on the order of a physician. MARKINGS Products marked with the CE mark of compliance meet the safety requirements of the European Union (93/42/EEC). WARNINGS The safety of operating personnel and trouble-free operation of the equipment are ensured only if original parts are used. Only accessories and spare parts mentioned in the technical documentation or expressly approved by the manufacturer can be used. If any other accessories or consumable materials are used, the manufacturer cannot be held responsible for the safe operation and functionality of the equipment. The warranty does not cover damages resulting from the use of accessories or consumable materials other than those recommended by the manufacturer. The manufacturer assumes responsibility for the safety, reliability and function of the equipment only if: - Installation, calibration, amendments, extensions and repairs are performed by the manufacturer, one of its representatives or a service provider authorized by the manufacturer - The equipment is used in accordance with the Installation, Operation and Maintenance Manual The Installation, Operation and Maintenance Manual accurately describes the design of the compressor and its compliance with safety and technical standards. The manufacturer reserves all rights to its wiring diagrams, procedures and names. 2 NP-DK50 DS-19_

4 GENERAL INFORMATION General safety warnings The equipment is designed to operate safely when used correctly. Please note the following safety measures to avoid injury or damage. Equipment operation must comply with all local codes and regulations. Original packaging should be kept for the possible return of the unit. Only original packaging ensures optimal protection of the equipment during transport. If it is necessary to return the equipment during the warranty period, the manufacturer is not liable for damages caused by incorrect packaging. The user must immediately notify the supplier if any problem occurs during the use of the equipment. This product is not intended for use in areas where there is a risk of an explosion. Do not operate the compressor in the presence of flammable anesthetics. Never feed oxygen or nitrous oxide into the compressor. Compressor components are not approved for oxygen or nitrous oxide use. Electrical system safety warnings The equipment must be connected to ground. I order to assure proper grounding, connect the compressor to a receptacle marked "hospital grade." Before the compressor is plugged in, make sure that the voltage and frequency of the mains specified on the equipment are the same as the power mains. Before operating, check for possible damage to the equipment and any connections. Damaged pneumatic and electrical lines must be replaced immediately. If a technical failure occurs, immediately disconnect the equipment from the mains (pull out the main power plug). During repairs and maintenance, ensure that: - The main power plug is removed from the power socket - Compressed air lines are disconnected - All pressure has been released from the air tank Only a qualified technician can install this equipment. NP-DK50 DS-19_

5 GENERAL INFORMATION WARNING NOTICES AND SYMBOLS The following symbols are used for important information in the Installation, Operation and Maintenance Manual and on packaging and the product: Attention, see instructions for use Caution, risk of electric shock Consult instructions for use CE mark of compliance Caution, hot surface Handling mark on package FRAGILE Handling mark on package THIS SIDE UP Handling mark on package KEEP DRY Handling mark on package TEMPERATURE LIMITATIONS Handling mark on package LIMITED STACKING Mark on package RECYCLABLE MATERIAL Alternating current Ground connection Equipotentiality Fuse Condensate drain Never dispose of the battery with common household waste. 4 NP-DK50 DS-19_

6 GENERAL INFORMATION USE The equipment can be installed and operated only in a dry, ventilated and dust-free area. Climatic conditions for operation - see Technical data. The compressor must stand on a flat and stable base. The compressor must not be exposed to rain. The equipment must not be used in humid or wet environments. Never use the compressor in the presence of flammable liquids or gases. Before connecting the compressor to respiration equipment, make sure that it meets the requirements of the respiration equipment. Refer to the Technical data for this purpose. Any use other than the compressor s intended use is not considered to be safe. The manufacturer is not responsible for any damages that result if the compressor is used for any other purpose. Risk is exclusively assumed by the operator/user. STORAGE AND TRANSPORT The compressor is shipped from the factory in transport packaging with the pump stabilized, protecting it from damage during transport. For transport, always use the original packaging and secure the compressor in the upright position. Protect the compressor from humidity, contamination and extreme temperatures during transport and storage. A compressor in its original packaging should be stored in a warm, dry and dust-free area. Keep the packaging material, if possible. If not, dispose of the packaging material in an environmentally-friendly way. Cardboard can be recycled. Before moving or transporting the compressor, the pressure in the air tank and hoses must be released and any condensed water must be drained. Secure the motor to prevent movement before shipping. Prior to transport it is necessary to secure the motor inside the compressor (Chapter 5.) NP-DK50 DS-19_

7 EQUIPMENT DESCRIPTION 2. EQUIPMENT DESCRIPTION 1. Display the primary display indicates outlet pressure 2. PRESSURE - alarm at low outlet pressure 3. TEMP - alarm at high operating temperature 4. DRYING indicates drying level; yellow = unsatisfactory, green = satisfactory 5. MAINS loss of power alarm 6. TIME hours of operation are displayed when the button is pressed 7. BATTERY low battery indication = yellow 8. POWER device status indicator = green 9. OUT compressor outlet air 10. WALL - inlet air coming from an outside compressed air source 11. Main inlet, power switch, primary fuses 12. Equipotential (ground) pin 13. Socket for the electrical cord 14. Condensate tank 15. Air intake filter 16. Compressor 17. Safety valve 18. Air tank 19. a. Filter (40 μm) and water trap 19. b. Filter (5 μm) and water trap 20. Pressure regulator 21. Intake filter 22. Control electronics 23. Cooler The compressor contains of an oil-free piston (16) driven by a low-maintenance singlephase electric motor. Compressed air is cooled in the cooler (23) where condensed water is separated into a separate tank (14). Incoming air passes through two filters (15, 21) undergoing double filtration as it passes through the system (19). The model with a membrane dryer is intended for applications that require a higher level of air dryness. Constant outlet pressure is maintained by pressure regulator (20). The built-in air tank (18) enables peak air consumption of 200 L/min. The device may be used as a standby compressed air source. In this configuration, the respiratory equipment is supplied with compressed air from the central compressed air lines of the medical facility. Air pressure in the central compressed air line is monitored by a pressure sensor. If the pressure is sufficient, the compressor stays in STANDBY mode. If the pressure falls, the control unit automatically puts the compressor into operation. When the compressor is used as the main source of air, the control unit determines its operation according to the current demand for air. If air consumption is zero, the device switches to STANDBY mode. The compressor is equipped with indicators for outlet pressure (1), operating hours (6), power status (8), drying status (4) and battery condition (7). Acoustic and optical alarms activate to warn of high operating temperature (3), low outlet pressure (2) and loss of power (5). 6 NP-DK50 DS-19_

8 NP-DK50 DS-19_ EQUIPMENT DESCRIPTION

9 TECHNICAL DATA 3. TECHNICAL DATA TYPE DK50 DS VERSION basic standard advanced Outlet flow at pressure 3.5 bar (51 psig) Liters/min Peak flow 200* L/min ( 7 Cft/min ) Voltage / Frequency / Nominal current V/Hz/A 230/50 / /60 / /60 / /60 / 5.6 UL model** 100/50-60 / /50 / /60 / /60 / /50-60 / /50 / /60 / /60 / 6 100/50-60 / 6 Air filtration m 5 Pressure dew point at 40 L/min ( 1.4 Cft/min), 3 bar( 43.5 psig ), 20 C (68 F) 5 C (9 F) below the ambient temperature 10 C (18 F) with membrane dryer (optional) Outlet connection DISS 1160-A (3/4"-16 UNF) optional NIST (EN 739) Sound level db(a) 50 Hz Hz Mode of operation Continuous - S1 Separation of condensed water Automatic Indication of drying Yellow (working pressure < 4 bar (58 psig) ) Green (working pressure 4 bar (58 psig) ) Low pressure alarm Decrease in outlet pressure under 2.1 bar ( 30.5 psig ) Cooling failure alarm Increase in internal temperature above 80 C (176 F) Outlet pressure 3.0 bar (43 psig) Adjustable to max. 3.5 bar (51 psig) Automatic start up pressure (backup) Decrease in pressure in the central air line under 2.8 bar ( 40.6 psig) Air tank capacity 2 L (0.61gall UK) Pressure range 5 bar ( 72.5 psig ) 6.5 bar ( 94 psig) Operating pressure of safety valve 7 bar ( psig ) Adjustment of outlet air pressure Pressure regulator Dimensions of compressor w x d x h 445 x 355 x 440 mm ( 17.5 x 14 x 17 in ) Dimensions of compressor with weels w x d x h 470 x 380 x 520 mm ( 18.5 x 15x 20.5 in ) Dimensions of compressor with trolley w x d x h 535 x 575 x 1054 mm ( 21 x 22,5 x 41.5 in ) Dimensions of packaging w x d x h 510 x 480 x 470 mm ( 20 x 19 x 18.5 in ) Dimensions of packaging 560 x 630 x 760 mm ( 22 x 25 x 30 in ) Net weight 34 kg ( 75 lbs ) Net weight of compressor with weels 36 kg ( 80 lbs ) Net weight of compressor with trolley 45 kg ( 99 lbs ) Gross weight 41 kg ( 91 lbs ) Gross weight of compressor with weels 43 kg ( 95 lbs ) Gross weight of compressor with trolley 60 kg ( 132 lbs ) Implementation according to EN , EN ** UL Model UL , Type B class I. CAN/UCSA.C M90 Classification acc. to MDD 93/42 EEC, 2007/47 EC II b * With 0.6 bar pressure drop (8.7 psig) Climatic conditions for storage and transport Temperature 25 C to +55 C (-13 F to +131 F), 24 hrs +70 C (+158 F) Relative air humidity 10% to 90 % (no condensation) Relative air humidity for seaworthy packing 10% to 100% (with condensation) Climatic conditions for operation Temperature +15 C to +40 C (+59 F to +104 F) Relative air humidity up to +95% IPX0 Rating 8 NP-DK50 DS-19_

10 TECHNICAL DATA FAD efficiency correction for differences in elevation FAD correction table Elevation [mamsl] FAD [l/min] FAD x 1 FAD x 0.8 FAD x 0.71 FAD x 0.60 FAD efficiency refers to conditions at an elevation of 0 mamsl: Temperature: 20 C Atmospheric pressure: Pa Relative humidity: 0% NP-DK50 DS-19_

11 OPERATION 4. OPERATION INSTALLATION AND FIRST OPERATION Do not use the compressor immediately after unpacking as it will not adjust to the ambient temperature. Only qualified personnel can install the compressor and put it into operation for the first time. The installer shall train the operating personnel in the use and routine maintenance of the equipment. Installation and training of personnel should be acknowledged by the installer s signature on the installation certificate. Prior to start-up, the four screws for transport stabilization must be removed. If the compressor is switched on without removing the stabilizers, the compressor could be permanently damaged. The compressor does not contain a backup power supply. Never block the air intake filter on the backside or the vent outlets on the top of the equipment. If the compressor is equipped with a main source of air, the standby air source must be available. ANY MODIFICATION OF THIS EQUIPMENT IS FORBIDDEN! If this equipment is used nearby other instruments, the equipment must be observed in order to verify normal operations in the configuration it will be used. Instruments may be affected electro-magnetically! BEFORE FIRST USE REMOVE PROTECTIVE COVER OF THE SWITCH! 10 NP-DK50 DS-19_

12 OPERATION Removal of transport stabilizers On the bottom of the unit are four M6 stabilizing screws that must be removed before start-up. They are marked with a red warning washer. Wheel installation Please retain the stabilizing screws for future transport of the compressor. Wheels must be installed following the figure below for versions of the compressor with wheels. Compressed air connection The medical compressor is equipped with quick couplings WALL (10) and OUT (9) on the rear of the cabinet. Connect the pressure hose from the given equipment/respiration equipment to the quick coupling OUT (9) -outlet compressed air. Connect the compressed air line from the central distribution line o the quick coupling WALL (10) -inlet compressed air. Air from the distribution system is automatically connected through the compressor to the OUT outlet port. In this configuration, the compressor serves as a backup source of compressed air. If the air pressure from the central distribution system is reduced, the compressor automatically switches on and there is no interruption in the supply of continuously pressurized air at the outlet of the compressor. Please note that the air supply from the central distribution line entering the compressor must be medical grade air (particulate size, humidity.) The compressor does not modify the air from the central distribution line. The hose connecting the compressor to the respiration equipment must not pass through a cold environment i.e. placed on the ground. It should be as short as possible with no kinks (this may cause water to condense inside the hose). NP-DK50 DS-19_

13 OPERATION Electrical connection The compressor comes with a plug containing an appropriate protective contact (ground.) Adhere to local electrical regulations. The voltage and frequency of the mains must comply with the specifications on the data label. The electrical cord must not be stressed or have any tension exerted upon it, and must always be free. The socket must be accessible for safety reasons so that the equipment can be safely disconnected from the power supply in case of an emergency. The relevant current circuit must be protected. Connection of the ground connection (12) to other equipment must adhere to local electrical regulations. Fasten the electrical cord through the holder (13). First operation Make sure that the stabilizing screws used during transport were removed. Check that the connection to the compressed air supply is correct. Check for proper connection to the main power supply. Switch on the pressure switch (11) to position I. After the compressor is put into operation, it shall work in one of the following modes depending upon the pressure level in the central distribution and upon air consumption. STANDBY When there is sufficient pressure in the central air distribution line, the main switch is on and the POWER (8) indicator is on, the compressor is idle. The device operates as a standby source of air as it checks the pressure in the central air distribution line and, if the pressure falls, the compressor switches on. When pressure is low in the central air distribution line, or if the device is not connected to the central distribution line, the compressor is running. If there is no air consumption at the outlet, the device switches to STANDBY mode. When air consumption resumes, the compressor automatically switches on. The working pressure in the air tank when the compressor is running is maintained between the high and low pressure limits by the control unit. After the high working pressure limit is reached, the compressor output is connected to the exhaust (bypass) and the compressor stops supplying compressed air to the air tank until as long as the pressure in the tank does not drop below the low pressure limit. During operation, the device drains the trapped condensed water from pneumatic circuits via automatic filter separators into a separate tank. 12 NP-DK50 DS-19_

14 OPERATION Important note: If compressor equipped with set of membrane dryer ( art. nr.: ) and compressor is not connected to WALL ( central air supply ), the compressor does not switch into STAND BY. In order to maintain the membrane dryer unit active the dryer unit requires a small constant flow of compressed air. Compressor works in RUN mode only. The compressor stops and starts only when it is switched off and on manually by power switch. Accessories If compressor equipped with set of membrane dryer ( art. nr.: ) and compressor is connected to WALL ( central air supply ), the compressor works in complete mode operation, including STAND BY mode. Trolley SD 30 (24) The trolley accommodates the compressor, a fan and a humidifier. Large casters allow for mobility and braking, guided by means of an ergonomic handle. A wide base ensures the stability of the entire assembly. Specifications Supply No.: Dimensions: 535x575x1070 Maximal load-carrying capacity with load in the upper plate axis (1): Trolley without compressor - Trolley with compressor - 25kg 30kg The manufacturer is not liable for any damage resulting from excessive loads on the equipment! The supplier is obliged to ensure the acceptability of a load delivered by a supplied accessory. It is forbidden to lean or press against an installed accessory for support! The equipment must be lifted when travelling over an obstacle! Supporting equipment must be disassemble before transport! The maximum load on the upper trolley plate is 30 kg! Humidifier holder (25) This clamp is used to attach the Fischer & Paykel humidifier to the trolley in its proper position. Supply No NP-DK50 DS-19_

15 OPERATION PERSONNEL In case of emergency, switch the equipment off at the switch and pull out the main power plug. Switching the compressor on The compressor is switched on at the main power switch (11) by putting it in position "I". Switching on is signaled by the green indicator (8). Running the compressor The green indicator POWER (8) is lit up during operation. The display shows the value of outlet pressure with accuracy ± 5% in BAR or PSI units. An indicator is lit on the display next to the relevant unit. Ask the service staff member to change the units that are shown if necessary. 115V version - After pressing the TIME (6) button, the display shows the number of hours in operation. 230V version - After pressing the TIME (6) button, the display shows the number of hours in operation. The compressor operating hours since the last service work are displayed by pressing the button for about 2 seconds. The calculated running interval is set to a coefficient of 1.0 if the compressor is supplying compressed air to the air tank. The calculated coefficient is 0.3 in BYPASS mode. The DRYING (4) indicator displays the drying status. Green indicates satisfactory drying; yellow indicates unsatisfactory drying. If the yellow indicator DRYING (4) stays on, make sure that air consumption from the compressor does not exceed outlet flow according to specification. If air consumption is within normal parameters, contact a service centre. A decrease in outlet pressure is indicated by the alarm PRESSURE (2) which sounds an alarm and illuminates the yellow indicator. The alarm is activated if the outlet pressure does not reach the required level and in the interval after the compressor is turned on until it reaches the required pressure. If the alarm stays on, make sure that the air consumption does not exceed outlet flow according to specification. If air consumption is within normal parameters, contact a service centre. A cooling failure is indicated by the alarm TEMP (3) which sounds an alarm and illuminates the yellow indicator. The device must be immediately disconnected from the electrical mains and cooled down. Cooling failure activation may indicate that the vent holes were covered, the filter in the bottom part of the compressor is contaminated or the compressor is in environment with higher temperature. If none of these circumstances apply, a malfunction has occurred and service is required. The alarm MAINS (5) is activated upon the interruption in the power supply to the compressor. Illumination of the yellow indicator BATTERY (7) indicates a low battery. The battery is charged automatically during equipment operation. If the yellow control light does not turn off after 24 hours of the equipment operation, it is 14 NP-DK50 DS-19_

16 OPERATION necessary to change the battery. The battery powers the MAINS (5) alarm and has no impact on other functions of the device. Entrust an authorized service provider with its replacement. Replace the battery with an identical replacement - NiMH 9V 200mAh. Used batteries cannot be disposed of as household waste, they must be collected separately. The condensed liquid drains into a separate tank (14) at the back of the equipment. When the tank fills up, it must be emptied. Close the plug located on the neck of the vessel before moving any vessel containing a liquid! Cleaning and replacing the filters At least once a week take out and clean the suction filter (15) located on the back side. Wash the filter in warm soapy water, rinse thoroughly and allow it to dry. Insert the clean filters so that the intake openings are completely covered by the filters. Cleaning the compressor To clean the compressor, use a detergent that contains no abrasives, chemical solvents or other corrosive agents. 5. MAINTENANCE REPAIRS AND SERVICE Warranty and extended warranty repairs are to be completed by the manufacturer or a service provider authorized by the manufacturer. The manufacturer reserves the right to modify the equipment in any way that will not alter the function or the operation of the equipment. Only a qualified technician or the Customer Service Department of the manufacturer may perform repairs that go beyond routine maintenance. Use only spare parts and accessories approved by the manufacturer. Prior to any maintenance or repairs, switch off the compressor and disconnect it from the mains (pull out the main power plug). Cover removal - Unscrew the 6 screws from the rear cover - Disconnect the grounding wire - Remove the rear cover - Disconnect the wiring connector for the display and pull the wiring out from the opening in the frame NP-DK50 DS-19_

17 MAINTENANCE - Unscrew the 4 screws from the rear of the main cover and 2 screws from the rear part of the rail - Disconnect the grounding wire - Remove the main cover - Reassemble using the opposite order MAINTENANCE SCHEDULE Notice! The operating entity is obliged to ensure that all tests of the equipment are carried out repeatedly at least once within every 24 months (EN 62353) or in intervals as specified by the applicable national legal regulations. A report must be prepared on the results of the tests (e.g.: according to EN 62353, Annex G), including the measurement methods used. Maintenance Page Time interval To be performed by Clean air intake filter 13 At least once a week Staff Safety valve check 15 Once per year Qualified expert Replace filters in filter 16 Every 4000 hours Qualified expert Test the tightness of joints and inspect the equipment Replace piston complete with piston rings, O-rings and bearing 15 After two years Qualified expert Service documentation Every 8000 hours Qualified expert Replace suction filter 17 Every 8000 hours Qualified expert Perform Repeated Test according to EN x 2 years Qualified expert Service interval signalization Safety valve check Once 4000 operating hours have been reached, the value 4000 starts to appear as the outlet pressure from the equipment, alternating with the actual outlet pressure value. They alternate about every 2 seconds. Once this information appears, the operator is obliged to secure service work for the equipment. The safety valve is adjusted to 7 bar by the manufacturer, then tested and marked. It must not be readjusted. 16 NP-DK50 DS-19_

18 MAINTENANCE Only allow the safety valve freely puff for a short period of time. Never use the safety valve to release pressure in the air tank. This could damage the safety valve. Check tightness of joints and inspect the equipment Test for leakage: Disconnect the outlet hose from the quick coupling OUT (9); compressed air consumption will stop. Pressurize the air tank by releasing some air via a connected device. With the compressor off, wait at least 10 minutes before checking the pressure level. If the pressure has dropped, use soapy water to find the leaky joint. Start with the joints outside the case, and then test the ones inside the case after removing the covers. Tighten or re-seal joints as necessary. Inspect the equipment: Check the status of the compressor motor for balanced operation or noise. Check the condition of the hangers above the pump. Check fan functionality. Check the condition of the filter. With regular operation, condensate from the filter (19) drains automatically. Verify this function by comparing the level of condensate in the bottle to the scale line indicating the maximum level. If the level of condensate is above the scale line, replace the faulty parts. Examine the pump for: - Defects in the crankcase - Free movement of the crank shaft If necessary, replace any faulty parts. Replacing filters elements Before beginning, evacuate all compressed air from the tank, reducing the tank pressure to zero and disconnect the equipment from the power mains. NP-DK50 DS-19_

19 MAINTENANCE Unscrew the cover and pull it out using the enclosed wrench (26). Unscrew the filter holder. Replace the filter and screw the filter holder into place. Screw the cover back in place. 26 Spare filtration pads: Bronze (40 μm) (19a) AF20P-060S-7-40B Item Plastic (5 μm) (19b) AF20P-060S Item If the water release system becomes clogged, disassemble the release valve (f), clean the outlet, remove the float (b) with a lever mechanism (c, d, and e) from the tank, clean all components with a soap solution and then reassemble. Setting outlet air pressure To unlock the control button of the regulator (20), raise it slightly and rotate it to set the demand outlet pressure. After setting the pressure, lock the control button of the regulator by pushing it down. Cleaning the pressure regulator Set the pressure to the minimum position Remove the plug (1) Rotate and remove the latch (2) Remove the line from the valve (3) and the valve (4), then clean the valve seat and the o-ring Re-install the components in the following order: (4), (3), (2) and (1) 18 NP-DK50 DS-19_

20 MAINTENANCE Replacing the inlet filter (21) Unlock the cover and pull it out. Replace the filter Lock the cover Spare part: Intake filter 05W POLYESTER, Item Stabilizing the compressor before shipping Before shipping, the compressor must be stabilized to prevent movement. Prior to fixation, it is necessary to disassemble the plastic cover. The air pump must be fixed to the base using the four original M6 screws (see picture). Assemble the plastic cover. SHUT-DOWN If the compressor is not going to be used for a long period of time, disconnected it from the main power supply and release the pressure in the air tank. EQUIPMENT DISPOSAL Disconnect the equipment from the main power supply. Release the pressure in the air tank. Dispose of the equipment according to local regulations. Parts used in this product have no negative impact on the environment when disposed of properly. BATTERY DISPOSAL No battery may be disposed with common household waste. Dispose of non-functional batteries at suitable collection sites. NP-DK50 DS-19_

21 TROUBLESHOOTING 6. TROUBLESHOOTING Prior to servicing the equipment, reduce the pressure in the air tank to zero and disconnect the equipment from the main power supply. Only trained service personnel can perform the activities listed in the troubleshooting guide. PROBLEM POTENTIAL CAUSE SOLVING COMMON PROBLEMS There is pressure in the air tank In STANDBY mode, the compressor starts when pressure decreases Switched off main breaker in distribution system Check supply No main power voltage Replace a defective fuse Compressor does Loose wire terminal tighten not start Power cord defective replace DRYING indicator lights yellow permanently PRESSURE alarm is activated permanently TEMP alarm is activated Compressor is noisy (knocking, metal noises) Water coming out of outlets Compressor malfunction Interrupted winding of motor, damaged thermal protection Defective capacitor Jammed piston or other part Leakage of air from pneumatic distribution system Large consumption of compressed air Worn out piston rings Dirty air suction filter Dirty air intake filter Leakage of air from pneumatic distribution system Large consumption of compressed air Worn out piston rings Dirty air suction filter Dirty air intake filter Dirty filter inserts of filter Dirty air blow down filter Covered vent holes Cooling fans don t work Unit is hot, unventilated area Damaged piston bearing or bearing in motor Loose (cracked) belt of the air pump hanger Dirty water trap in filter and filter regulator Failure of control unit Replace motor Replace capacitor Replace damaged parts Inspect pneumatic distribution system seal loose connection Do not exceed max. flow (see Technical data) Replace worn out piston rings Replace the dirty air suction filter Clean or replace the dirty air intake filter Inspect the pneumatic distribution system seal loose connection Do not exceed max. flow (see Technical data) Replace worn out piston rings Replace the dirty air suction filter Clean or replace the dirty air intake filter Replace the dirty inserts Clean or replace the dirty air blow down filter Uncover vent holes Replace fans Relocate unit Replace damaged bearing Replace damaged hanger Clean or replace the water trap Adjust using service software 20 NP-DK50 DS-19_

22 SPARE PARTS 7. SPARE PARTS Air intake filter (15 ) Filtration inserts (19a) Filtration inserts (19b) Fuse version 230V T6.3A V, 120V T10A Insertion DISS 1160-A Suction filter 05W POLYESTER NP-DK50 DS-19_

23 ELECTRIC AND PNEUMATIC DIAGRAMS 8. ELECTRIC AND PNEUMATIC DIAGRAMS WIRING DIAGRAM 1/N/PE ~ 230/120/100 V Hz ELECTRIC OBJECT OF 1st CAT. B TYPE YV DISPLAY ST? 14 U N Valve 1 14 Display X2 N - + N N U U U ~ Motor Fan 9 V battery 3rd contact X1 Q M XC 1 M EV1 EV2 U PE N Wiring diagram DK50 DS Mark Name Mark Name X1, X2 EV1, EV2 YV Q Sockets on PCB Fan Solenoid valve Switch M ST XC Electric motor Thermal sensor Socket with fuses 22 NP-DK50 DS-19_

24 ELECTRIC AND PNEUMATIC DIAGRAMS PNEUMATIC DIAGRAM OUT 3 2 T WALL 5 12 P1 P Intake filter 2. Compressor 3. Solenoid valve 4. Return valve 5. Cooler 6. Filter with water trap 7. Pressure regulator 8. Air outlet 9. Air intake 10. Air tank 11. Safety valve 12. Shuttle valve NP-DK50 DS-19_

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